This video was shown at last week’s WWDC keynote, during the Yosemite unveiling:

While I’m excited that Yosemite will run on my Mac, it dawned on me while listening to last week’s episode of The Talk Show that Yosemite’s visual facelift was made for Retina displays. My MacBook has a puny 1280x800 resolution, so the new look won’t even remotely look as good as if it were displayed on a Retina screen. In other words, trusty as my Mac is, it may be worth considering upgrading to the 13-inch Retina MacBook Pro for the screen alone to get the best possible experience.